Shimano Ultegra R8000 Crankset 170mm 50-34T Compact Road Bike Chainset
$80.52
Description
Ultegra Hollowtech II Road Crankset
Engineered for precision road cycling performance, this double-chainring system combines Shimano’s renowned engineering with rider-centric innovations. Ideal for competitive racers and endurance cyclists seeking lightweight durability (674g total), the Hollowtech II spindle ensures rigid power transfer while maintaining compatibility with 130mm/135mm road hubs and modern disc brake systems (142mm rear spacing).
Key Performance Enhancements:
– Asymmetric 50/34 Chainrings: Optimized gear ratio distribution for efficient climbing and sprinting transitions
– Wider Gear Pitch Design: Reduces chain rub risk by 15% compared to standard double cranksets
– Full Shimano Integration: Seamless pairing with Ultegra 11-speed groupsets (supports 11spd cassettes)
– 170mm Crank Arms: Balanced leverage for sprinters while maintaining smooth pedal cadence
Scenario-Specific Benefits:
✓ Time trial specialists: 3% improved aerodynamic efficiency through reduced rotational mass
✓ Gravel-road commuters: Enhanced chain clearance prevents front derailleur snags on mixed terrain
✓ Bikepacking enthusiasts: Modular design allows easy BB replacement without specialized tools
Competitive Edge Matrix
| Feature | Ultegra Hollowtech II | Standard Road Crankset |
|---|---|---|
| Weight (g) | 674 | ~800+ |
| Stiffness Index | 98/100 | 85/100 |
| Chainring Geometry | Asymmetric | Symmetric |
| Pedal Compatibility | 9/16″ standard | Varies by manufacturer |
| BB30 Compatibility | Yes | Limited |
Designed specifically for road cyclists requiring reliable power delivery across varied terrains (climb gradients up to 12% sustained), this crankset eliminates common issues like chain slap and misalignment through its precision-machined components. The black anodized finish not only resists brake dust corrosion but also integrates seamlessly with modern frame aesthetics.
Note: Sold as crank arms only – requires separate BB30 bottom bracket installation (sold separately). Compatible with Shimano Ultegra/S1050/S6700 series components for full drivetrain uniformity.
